Versions (3)
Version DetailsCurrent
Rev: 1 • Aug 9, 2023, 12:00 PMET INFO DNS Query to Cloudflare Tunneling Domain (argotunnel .com)
alert dns $HOME_NET any -> any any (msg:"ET INFO DNS Query to Cloudflare Tunneling Domain (argotunnel .com)"; dns.query; dotprefix; content:".argotunnel.com"; nocase; endswith; reference:url,www.guidepointsecurity.com/blog/tunnel-vision-cloudflared-abused-in-the-wild/; classtype:misc-activity; sid:2047122; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_08_09, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_08_09;)
Aug 9, 2023, 12:00 PM
Aug 9, 2023, 12:00 PM
Sep 21, 2024, 3:00 AM
Aug 20, 2025, 9:35 PM
rules/emerging-info.rules